Network+ practice test 1

What is the purpose of a LAN?

• To interconnect networks in several different buildings

• To connect one or more computers together so they can share resources.

• To interconnect 2 to 10 routers

• To make routers unnecessary

You need a topology that is easy to troubleshoot and scalable. which would you use?

• Bus

• Star

• Mesh

• Ring

IP resides on which layer of the OSI Model?

• Application

• Data Link

• Network

• Physical

Layer 2 of the OSI model is named?

• Application Layer

• Network Layer

• Transport Layer

• Data Link Layer

Which RG rating of coax is used for modern modems?

• RG-59

• RG-58

• RG-6

• RG-8

Which UTP wiring uses four twisted pairs (eight wires) and is rated for 250 MHz?

• cat 3 UTP

• Cat 5 STP

• Cat 5 UTP

• Cat 6 UTP

If you are running half-duplex internet, which of the following is true?

• Your digital signal cannot transmit and recieve data at the same time

• Hosts use CSMA/CD protocol to detect collision

• The physical connection consist of one wire pair

• None of the above.

You need to connect a hub to a switch. You don't like the idea because you know it will create congestion. What type of cable do you need to connect the hub to the switch

• EtherIP

• Crossover

• Straight-through

• Cable Sense, Multiple Access

your boss asks you why you just put in a requisition to buy a bunch of switches. He says, "You guys just bought a bunch of hubs 5 years ago!" Why did you buy the switches

• Because each switchport is its own collision domain

• The cable connecting devices to the hub wore out, and switches were cheaper than new cable

• There are too many broadcast domains, and a switch breaks up broadcast domains by default

• The hubs kept repeating signals, but quit recognizing frames and data structures

Which device would connect network segments together, creating separate collision domains for each segment but only for a single broadcast domain

• Hub

• Router

• Switch

• Modem